Level 9 : What does the following dictionary comprehension do?


{x: x*x for x in range(5)
if x%2 == 0}

Author: KaivalyaG | Tags: comprehension | 1859+ Python FAQs | Share
walking-through-directories-using-os.walk() | compute | import-method | installation | input-function | library | complex | classes | data-structures-in-python | filter-function | global-variable | head-and-tail | type-conversion | iterable | working-with-temporary-files-using-tempfile | using-the-threading-module | while-and-for-loop | fabs-function | access-modifier | asyncio | using-yield-in-functions | intering | type_conversion | zfill-function | tuple-methods | zip | type-conversion-and-casting | working-with-binary-files-(rb,-wb) | matrix-list-comprehension | logical-operator | list-method | exponentiation | loops | file-handling | loop-control-statements | def | magic-method | creating-and-starting-threads | matplotlib | logical-operator | dictionary | built-in-function | basic | error-handling | mathematics | indentation | max-min | list-slicing | string-methods | set-operation | functional-programming | joining-and-merging-dataframes | math-copysign | filtering-and-indexing | managing-directories-with-os-and-shutil | design-principle | function | lambda | strings | inheritance | error-handling | handling-missing-values-(fillna,-dropna) | assignment-operator | expression | list,-set,-and-dictionary-comprehensions | turtle | async | append | return-statement | anchors-(^,-$) | mathematical-function | string-method | list-methods-and-slicing | swapping | typeerror | file_handling | sum() | multiprocessing | introduction-to-python | datatype | working-with-file-paths | memory | complex-number | introduction-to-threads | string-iteration | math | conversion | copy | id-function | lambda-functions | module | higher-order-function | matrix | global-variable | array | lambda-function | threading | difference-between-threads-and-processes | dictionary-comprehensions | data-types | mysql | multiple-except-blocks | expand-tab | version-check | operator-overloading | string-formatting | slice | touples | odd-number | split | iterators | syntax | data-type-conversions | built-in | objects | set | package-management | precedence-and-associativity | loop-control | parsing-with-strptime | multiple-inheritance | filter | functional-programming | name-mangling | pickling--unpickling | exception | dicts | file | range | invalid-list | oops | membership-operators-(in,-not-in) | list-operation | list-indexing | using-assertions-(assertequal,-assertraises) | identifier | generators | error | postfix | match | mutable | list-comprehensions | reading:-read(),-readline(),-readlines() | identity-operator | attribute | statement | bitwise | application | encoding | thread | list-vs-tuple | command-line-parsing | multithreading | dataframe-and-series-objects | min-max-function | shallow-copy | stack | logical-operation | static-method | round | creating-custom-modules | loop | using-join()-and-is_alive()-methods | gil | list-mutation | keyword | function-argument | raise | frozenset | formatting-with-strftime | software-design | method | integers | precedence | method-overloading | virtual-environment | string | data-structure | conditional-statements | benefit | binary-operation | else-statement | staticmethod | feature | formal-and-actual-parameter | random-function | sys | variable | data-structure | polymorphism | format | collection | conditional-statement | exception-handling | default-mutable-argument | while-loops | pandas | logical-operators | counter-function | map-function | global | control-flow | operators | comment | context-manager | list-join | memory-management | python | min-function | class-and-instance-variable | debugging | decorator | while-else-loop | immutability | operator-and | condition | sorting | using-os-and-pathlib-modules | operator | regular-expressions | class | boolean-masking | reading-and-writing-large-files-efficiently | using-map()-for-transformations | list-comprehension | list | overflow | string-method | input-function | methods | counter | slicing | tuples | string-concatenation | yield | namedtuple | mapping-function | version | while-loop | single-inheritance | __future__ | round-function | arithmetic-expression | descriptors | tuple-unpacking | input | inherit | string-formatting | multiple-inheritance | lists | namespace | identity-operators-(is,-is-not) | data-type | reading-and-writing-files | using-else-and-finally | built-in-function | generator | print | choice | opening-files-(open()) | int | pseudocode | data-structures | decimal | python-module | python-syntax-and-structure | unit-testing | thread-synchronization | operations | sets | defining-functions | python-operators | implementation | syntax-error | parameter | escape-operator | recurssion | raise-statement | nested-loop | docstring | function-and-scope | constructor | data-type | sum-function | python-repl | string-slicing | identity-operator | sorting-and-ranking | for | conditional-statement | exception-handling | python-history | oop | assert | thread-safe-data-structures-(queue.queue) | enumerate() | pass | sys-module | rollback | immutable-data-type | heap-memory | integer | boolean-and-non-boolean | numeric | scientific-notation | factorial-function | indexing:-loc-vs-iloc | interpreter | join | string-slicing | list-comprehension | global-keyword | regular-expression | encapsulation | goto-function | tuple | bitwise-operator | lambdas | quantifiers-(*,-+,-?,-{}) | aggregating-data-with-functools.reduce() | indexing | string-manipulation | datetime.date,-datetime.time,-datetime.datetime | init | iterator | introduction-to-multiprocessing | sorted | update | zip-function | key-value-pairs | functions | test-discovery | boolean | else | floating-point-precision | regex | dictionary-methods | assignment-operators | comprehension | time-series-with-pandas | class-and-inheritance | directory-operations | data_structure | floats | file-handling | object-attribute | control-statement | generators-in-python | deep-copy | destructor | asyncio-module | bitwise-operator | dictionaries | why-use-multiprocessing-over-threading?-(gil) | binary | default-arguments | arithmetic-operation | operand | __all__-attribute | control-flow | python_version | writing:-write(),-writelines() | overriding-methods | call | datetime | type-conversion | comparison | recursion | syntax-error | numpy | random | __init_subclass__ | class-and-object | print-statement | with-statement | operator-or | arbitrary-arguments-(*args,-**kwargs) | collections | built-in-modules | virtual-environment | pep | python-django | using-lists-as-stacks | center | syntaxerror | literal-characters-and-special-characters | booleans | working-with-dates-and-times | class-decorators | advanced-file-operations ...